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aquifer |
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aquifer (ăk`wĭfər): see artesian well artesian well, deep drilled well through which water is forced upward under pressure. The water in an artesian well flows from an aquifer, which is a layer of very porous rock or sediment, usually sandstone, capable of holding and transmitting large quantities of ..... Click the link for more information. . aquiferIn hydrology, a rock layer or sequence that contains water and releases it in appreciable amounts. The rocks contain water-filled pores that, when connected, allow water to flow through their matrix. A confined aquifer is overlain by a rock layer that does not transmit water in any appreciable amount or that is impermeable. There probably are few truly confined aquifers. In an unconfined aquifer the upper surface (water table) is open to the atmosphere through permeable overlying material. An aquifer also may be called a water-bearing stratum, lens, or zone. aquifer a porous deposit of rock, such as a sandstone, containing water that can be used to supply wells How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Nor will it hand over any significant West Bank land to Palestinians, for in doing so Israel would have to abandon lush aquifers (underground water reserves), key access to the Dead Sea, the Jordan River, and surrounding fertile plains. On the last expanse of untrammeled Midwestern grassland, Jones examines the interrelations of aquifers with prairie chickens and deerflies, of wild berries and nuts in the native American diet. After several months, enough water had accumulated in local aquifers to increase the rate of discharge below the Gulf's surface. |
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